Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.4 - Adding and Subtracting Polynomials - Exercise Set: 46

Answer

$4m^{2}-m+17$

Work Step by Step

$(-m^{2}+3)-(m^{2}-13)+(6m^{2}-m+1)$ Remove all the parentheses. To remove the second one, change the sign of every term inside it: $-m^{2}+3-m^{2}+13+6m^{2}-m+1=...$ Simplify by combining like terms: $...=(-1-1+6)m^{2}-m+(3+13+1)=4m^{2}-m+17$
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